Linking AirBase with geo-info Future developments of air quality

information system AirBase

Wim MolEuropean Topic Centre on Air and Climate Change (ETC/ACC)under contract to the European Environment Agency

Bilthoven, The Netherlands

11th Eionet Workshop on Air Quality Okt 26-27 2006 2La Rochelle

ContentsContents

• Linking AirBase with geo-info– Matching AirBase info with Sabe info– Matching Sabe codes and national NUTS/LAU codes– Results and feedback

• Future developments of air quality information system AirBase– Matching results and linking parameters in Airbase– Results of overlays in AirBase– Integrated control of EoI and AQ questionnaires– Google Earth– Suggestions?

11th Eionet Workshop on Air Quality Okt 26-27 2006 3La Rochelle

Linking AirBase with geo-info:Linking AirBase with geo-info:Matching AirBase info with Sabe infoMatching AirBase info with Sabe info

• EuroBoundaryMap (Sabe) database– European administrative units (Sabe regions

with Sabe code and name)– www.eurographics.org

• AirBase station coordinates• Search process to determine which

station in which Sabe region

11th Eionet Workshop on Air Quality Okt 26-27 2006 4La Rochelle

Linking AirBase with geo-info: Linking AirBase with geo-info: Matching AirBase info with Sabe infoMatching AirBase info with Sabe info

Match-up process:• Coarse search step based on country

code and bounding box coordinates• 1-3 candidate regions for each station• More detail: point-inside-polygon

computation

11th Eionet Workshop on Air Quality Okt 26-27 2006 5La Rochelle

Linking AirBase with geo-info: Linking AirBase with geo-info: Matching AirBase info with Sabe infoMatching AirBase info with Sabe info

• 0 matches:– BA, CS, MK not in Sabe project– Stations with missing/zero/wrong/reversed

coordinates– Inaccurate station coordinates especially stations on

country borders and on islands

• More matches by matching Sabe names with AirBase station/city names

11th Eionet Workshop on Air Quality Okt 26-27 2006 6La Rochelle

Linking AirBase with geo-info: Linking AirBase with geo-info: Matching Sabe codes and NUTS/LAU codesMatching Sabe codes and NUTS/LAU codes

• http://ec.europa.eu/comm/eurostat/ramon/nuts/lau_en.html

• Linking Sabe codes with national NUTS/LAU codes:– Sabe code as (partial) combination of

NUTS/LAU codes– Some countries have also local

administrative codes. Matching by combining names

11th Eionet Workshop on Air Quality Okt 26-27 2006 7La Rochelle

Linking AirBase with geo-info: Linking AirBase with geo-info: Results and feedbackResults and feedback

• 5585 stations in AirBase• 5292 are matched by search process• 116 are matched by combining

station/city names• In total: 5408 stations are matched

(97%)• Feedback EoI2006:

– Checking the matching lists– Correct station coordinates

11th Eionet Workshop on Air Quality Okt 26-27 2006 8La Rochelle

Linking AirBase with geo-info:Linking AirBase with geo-info: Results and feedbackResults and feedback

• City names on LAU1/LAU2 level• Linking with other databases; making

overlays with population, land cover maps etc.

• Combination with zone/agglomeration maps

11th Eionet Workshop on Air Quality Okt 26-27 2006 9La Rochelle

Future developments AirBase: Future developments AirBase: Matching and linking parameters in AirbaseMatching and linking parameters in Airbase

• Matching parameters: Sabe code, name; refilling NUTS1/2/3 and LAU1/2 codes

• Linking parameters: zone and agglomeration codes (to be defined)

11th Eionet Workshop on Air Quality Okt 26-27 2006 10La Rochelle

Future developments AirBase: Future developments AirBase: Results of overlays in AirBaseResults of overlays in AirBase

• GIS overlays with population and land cover maps

• Results in AirBase: e.g. population numbers, city names (LAU1 or LAU2 name)

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Future developments AirBase: Future developments AirBase: Integrated control of EoI and AQ questionnairesIntegrated control of EoI and AQ questionnaires

• Necessary meta info available in AirBase• After importing raw data, statistics and

exceedances can be calculated• The export function of the DEM can be

extended with the questionnaire spreadsheet prefilled with info from AirBase and the DEM

• A useful help functionality to fill in the questionnaire

11th Eionet Workshop on Air Quality Okt 26-27 2006 12La Rochelle

Future developments AirBase: Future developments AirBase: Google EarthGoogle Earth

• From AirView it is possible to create a GIS map in the EEA Map Service

• Analogously it is also possible to create a *.kml file for Google Earth

• Applications:– Checking station coordinates– Insight into station surroundings– Visualisation of statistics, exceedances etc.

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Future developments AirBase: Future developments AirBase: Suggestions?Suggestions?

• Suggestions?• Questions?• Remarks?